Henry Percy, 4th Earl of Northumberland was born circa 1449 to Henry Percy, 3rd Earl of Northumberland (1421-1461) and Eleanor Poynings (c1422-1484) and died 28 April 1489 of unspecified causes. He married Maud Herbert (c1448-c1485) 1474 JL .
Children
| Name | Birth | Death | Joined with |
| Eleanor Percy (c1474-1530) | 1474 Leconfield, Yorkshire, England, United Kingdom | 13 February 1530 | Edward Stafford, 3rd Duke of Buckingham (1478-1521) |
| Henry Algernon Percy, 5th Earl of Northumberland (1477-1527) | 13 January 1477 Alnwick Castle, Northumberland, England, United Kingdom | 19 May 1527 Wressle, Yorkshire, England, United Kingdom | Catherine Spencer (c1477-1542) |
| William Percy (c1478-1540) | |||
| Josceline Percy (1480-1532) | |||
| Alan Percy (c1481-) | |||
| Arundel Percy (1483-1544) | |||
| Anne Percy (1485-1552) | 1485 | 1552 | William FitzAlan (1476-1544) |
| Elizabeth Percy (aft1485-) | |||
Footnotes (including sources)
| ‡ General |
| ₪ Wedding |
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